omnidirectional electret condenser microphone  (CUI Inc)

Journal: Sensors (Basel, Switzerland)

Article Title: Acoustic Noise-Based Detection of Ferroresonance Events in Isolated Neutral Power Systems with Inductive Voltage Transformers

doi: 10.3390/s23010195

Figure Lengend Snippet: Model parameters for CMA-4544PF-W electret condenser microphone.

Article Snippet: Microphone , To measure the sound of the IVT. The selected microphone was an omnidirectional electret condenser microphone from CUI Inc. with a −44 dB sensitivity, an operating frequency in the range (0.02, 20) kHz..

Techniques:

Journal: Sensors (Basel, Switzerland)

Article Title: Acoustic Noise-Based Detection of Ferroresonance Events in Isolated Neutral Power Systems with Inductive Voltage Transformers

doi: 10.3390/s23010195

Figure Lengend Snippet: Circuit model of CMA-4544PF-W electret condenser microphone with pre-amplifying stage built in around the low-noise OA MAX4466.

Article Snippet: Microphone , To measure the sound of the IVT. The selected microphone was an omnidirectional electret condenser microphone from CUI Inc. with a −44 dB sensitivity, an operating frequency in the range (0.02, 20) kHz..

Techniques:

Journal: Sensors (Basel, Switzerland)

Article Title: Acoustic Noise-Based Detection of Ferroresonance Events in Isolated Neutral Power Systems with Inductive Voltage Transformers

doi: 10.3390/s23010195

Figure Lengend Snippet: Frequency response of the CMA-4544PF-W electret condenser microphone with pre-amplifying stage built-in around the low-noise OA MAX4466.

Article Snippet: Microphone , To measure the sound of the IVT. The selected microphone was an omnidirectional electret condenser microphone from CUI Inc. with a −44 dB sensitivity, an operating frequency in the range (0.02, 20) kHz..

Techniques:

Journal: Sensors (Basel, Switzerland)

Article Title: Acoustic Noise-Based Detection of Ferroresonance Events in Isolated Neutral Power Systems with Inductive Voltage Transformers

doi: 10.3390/s23010195

Figure Lengend Snippet: List of main elements of the system.

Article Snippet: Microphone , To measure the sound of the IVT. The selected microphone was an omnidirectional electret condenser microphone from CUI Inc. with a −44 dB sensitivity, an operating frequency in the range (0.02, 20) kHz..

Techniques: Isolation

Journal: Sensors (Basel, Switzerland)

Article Title: Acoustic Noise-Based Detection of Ferroresonance Events in Isolated Neutral Power Systems with Inductive Voltage Transformers

doi: 10.3390/s23010195

Figure Lengend Snippet: Comparison tests carried out.

Article Snippet: Microphone , To measure the sound of the IVT. The selected microphone was an omnidirectional electret condenser microphone from CUI Inc. with a −44 dB sensitivity, an operating frequency in the range (0.02, 20) kHz..

Techniques: Comparison

Journal: Sensors (Basel, Switzerland)

Article Title: Acoustic Noise-Based Detection of Ferroresonance Events in Isolated Neutral Power Systems with Inductive Voltage Transformers

doi: 10.3390/s23010195

Figure Lengend Snippet: Advantages and disadvantages of existing ferroresonance-detection methods.

Article Snippet: Microphone , To measure the sound of the IVT. The selected microphone was an omnidirectional electret condenser microphone from CUI Inc. with a −44 dB sensitivity, an operating frequency in the range (0.02, 20) kHz..

Techniques: Isolation

Journal: The Journal of Experimental Biology

Article Title: Discriminating predation attempt outcomes during natural foraging using the post-buzz pause in the Japanese large-footed bat, Myotis macrodactylus

doi: 10.1242/jeb.243402

Figure Lengend Snippet: The microphone array system. (A) Top view of the pond. A Y -shaped microphone array system was set up at four locations around the pond (total of 16 microphones) and two cameras were set up on one side of the pond. (B) Schematic of a Y -shaped microphone array system consisting of four microphones, with M1 at the center and three microphones (M2–M4) placed 0.9 m apart from each other.

Article Snippet: Bat echolocation calls were recorded using four Y -shaped microphone array units, which comprised four omnidirectional electret condenser microphones (1/8-inch condenser microphones: models FG-23329-C05 and FG-23629-P16, Knowles Electronics, Itasca, IL, USA; ; B).

Techniques:

Journal: Sensors (Basel, Switzerland)

Article Title: Development of an Ultrasonic Doppler Sensor-Based Swallowing Monitoring and Assessment System

doi: 10.3390/s20164529

Figure Lengend Snippet: Comparison of swallowing duration results of healthy participants

Article Snippet: Next, an omnidirectional electret condenser microphone (WM-54BH, Panasonic Corporation, Japan; frequency = 20~16,000 Hz, radius = 9.7 mm, sensitivity = −42 ± 2 dB, and signal to noise ratio >60 dB) and an IMU (MPU-6500, TDK Corporation, Japan; 6-axis gyro accelerometer, L × W × T = 3 mm × 3 mm × 0.9 mm) are used to record signals due to vocalization, coughing, and/or movements around the neck, which also can affect ultrasound signals.

Techniques: Comparison